<!DOCTYPE html>
<html lang="zh-CN">
<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
  <style>

  </style>
</head>
<body>
  
  <div id="root">
    {{massage}}
  </div>


  <script src="https://cdn.jsdelivr.net/npm/vue@2.6.14/dist/vue.js"></script>
  <script type="text/javascript">
    var app = new Vue({
      el: "#root",
      data: {
        massage: "xxx 4 : 5 xxx"
      },
      methods: {

      },
      components:{

      },
      filter:{

      },
    })

    setTimeout(() => {
      app.$data.massage = "这是世界杯4102年";
    }, 2000);
  </script>
</body>
</html>